Or maybe that the improvements require a complex set of seemingly unrelated changes to occur.
For example, Adam Smith explained that the main driving force of change at some point was the appearance of new things to buy for the very rich people, as this allowed a novel redistribution of wealth and power.
(I am not quoting the ful argument here, and I am not claiming that the described factor was the only driving force of change, or even that I can claim on my own that it was the main force)
The last thread didn't fare too badly, I think; let's make it a monthly tradition. (Me, I'm more interested in thinking about real-world policies or philosophies, actual and possible, rather than AI design or physics, and I suspect that many fine, non-mind-killed folks reading LW also are - but might be ashamed to admit it!)
Quoth OrphanWilde:
Let's try to stick to those rules - and maybe make some more if sorely needed.
Oh, and I think that the "Personal is Political" stuff like gender relations, etc also belongs here.